Land scarifier



Sept, 21 1926.

. INVENTDR mf/N CLA/B21290151 Sept. 2'1 l1926.

J. LARKsoN LAND SCARIFER Filed Feb. 6, 1925 5 Sheets-Sheet 2 Patented sept. 21,1926.

y UNITED STATES JOHN cLARxsoN, or nwAnr, ivramaoiia," CANADA., I i

LAND sentirme.

j Application med February e, i925; serieu fivefaai'?.

This present invention relates to improvements in tillage implements appertaining more particularly to a land scariier' that will cultivate, -pulverize and destroy weeds.

The principal object is to providev an improved construction comprising a vehicular carriage and a rotatable toothed drum carried thereby on a tilting frame. Y

A further object is to provide such a scarier that is motor driven either by an engine mounted' on the vehicle itself, if horse drawn, or by a shaft or other transmission yfrom the hauling tractor.

A still further object is to provide such a device of few parts and simple construction and one that is rendered commercially desirable by being capable of manufacture at a reasonable cost.

To the accomplishment of these and related objects, the invention resides in the construction, combination and arrangement of parts as shall be hereinafter more fully dcscribed, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

In the drawings, forming a part of this disclosure, f

Fig. 1 is a side elevation of the preferred embodiment of my device;

Fig. 2 is a plan View thereof; and

Figs. 3, 4 and 5 are sectional and fragmentary details taken on lines 3 3, 4 4 and 5-5, respectively, of Fig. 1.

Treated generally the device comprises an offset main frame, supported at the raised forward end by a conventional truck and carried at its offset lower rear end by a plurality of small trailer wheels on each side.

on the main frame or by Va drive yfrom aV hauling tractor, completes the device.

Referring particularly tothe drawings wherein like characters indicate ylike parts in the several views, 6 is the'mainf rectangular frame, the forward end 7 lof which is mountedon the vertically pivoted truck 8. At 9 the frame Gis offset and the rear end 10,"supported by a plurality of smalltrailerV wheels l11 on both sides, is raisedfbut slightly from the ground. f '1 l A horizontal shaft 12 is rotatablejinvthe, main frame' and on this a similarly constructed supplemental carriage l 13 hinges. .i The rear of this tilting carriage supports the bearings 14e for a transverse shaft 15 of the drum 13 that comprises a hollow 'cylinderlf with spider ends 1.3 keyedto the said shaft. Long, spring, soilengagingtines' 19 are'xed to said cylinder and' extend radiallytherefrom. Y

A wheel 2O is also keyed vto an end ofthe shaft 15, exterior of the adjacent bearing and a belt 21' connects this with a wheelV 22 on shaft 12l thereby connecting the shafts 12 Yand 15 and produces actuationof the latter l28 unites the shaft 29 carrying this gear with the manuallyoperated crank-shaft 30 placed convenient for the operator, said crank shaft being supported bya hinged bearing31'on a support 32 yfrom the frame supporting n and held against rotation by a dog 33. Y

A vertically movable post 34 is held to the inner side of the main frame adjacent the rear end by a bolt 35 and a handle nut 36, a slot 37, in the post, accomodating said bolt allows, of its vertical adjustment. ProXimate of the top of this post "34, an angle iron 38'projects inwardly therefrom and acts as al stop, adjustable by the movement of said post for the tilting carriage it is adapted to intercept. j i

To prevent thetines 19 from throwing soil or the like, a semicylindrical Coverall guard 39 is provided -for the drum and its tines, the rearmost half 40 of I which is hinged to the fixed forward end. kFasteners i1 are provided to keep' the hinged sectionl normally in position yet allow of theopening thereof for cleaning orV inspection.

kFrom the foregoing description taken in connection .with the accompanying drawings, it will lloe manifest that a landscarifier is provided Ywhich will ullill Yall the necessary requirements-ofsuch a device, Ybut as many changes could be made in the above description and many apparentlywidely different embodimentsof my invention constructed within the scope of the appended claims without departing from thev spirit or scope thereof, 'it is intended that `all matters contained in the said accompanying specication and Adrawings shalLhe interpreted asillustrative and not ina limited sense.

l/Vhat I claim as new and desire to' secure by- Letters Patent is:

l. lAaland scarifier comprising a mainl carriage frame, a secondary frame hingedly supported thereby, a vertical 'standard secured. toy said main .frame havingl its inner face in the form of a rack,` a gear wheel, axially lparallel Vwith o the line of draught, journalled laterally tok said secondary frame andadapted to mesh with theV racked part or',

said standard, manually operablemeans for rotating said gear wheel anda .soil agitating element rotatably' journalled trans- 'Y by saidv o drivev shaft, manually' operatedmeans for vertically hinging said secondary `rame,anda pair of Yvertically 'adjustable stop members mounted one on either side ofsaid main frame near the rear thereof tosupport and steady said secondary frame in any desired vertical adjustment.

n testimony whereofl hereunto allix my signature.,.

JOHN fomlarrsoni'" 

